Priapus 

he Greek protector of gardens and domestic animals and fruits. He is a son of Dionysus and Aphrodite, and a strong phallic fertility deity. Carved images of Priapus, with large ithyphallic genitals, were placed in the fields and gardens to ensure fruitfulness and protection. He was imported into Rome from Lampascus where Pausanias reported he was supreme among all gods. The Roman Priapus was far more popular than his Greek version.